TY - RPRT TI - Interference from extraction thimbles in the gas chromatographic analysis of insecticides AU - T. G. Lamont AU - E. Cromartie PY - 1969 DO - 10.1016/s0021-9673(01)98019-7 UR - https://pubs.usgs.gov/publication/5221263 ID - 5221263 ER -